Remove Futures class, move methods to Future.

pkg/intl/test/date_time_format_file_test_stub.dart

Index: pkg/intl/test/date_time_format_file_test_stub.dart
diff --git a/pkg/intl/test/date_time_format_file_test_stub.dart b/pkg/intl/test/date_time_format_file_test_stub.dart
index 470a6d44a5145662b98f9031974faebf0608fe52..76e33aa8cc71753e4fcda6d129b71687b29422f6 100644
--- a/pkg/intl/test/date_time_format_file_test_stub.dart
+++ b/pkg/intl/test/date_time_format_file_test_stub.dart
@@ -27,7 +27,7 @@ runWith([Function getSubset]) {
 void runEverything(Function getSubset) {
   // Initialize all locales sequentially before running tests. Be sure not
   // to do it in parallel or we can run into ulimit problems on fast machines.
-  var futureList = Futures.forEach(DateFormat.allLocalesWithSymbols(),
+  var futureList = Future.forEach(DateFormat.allLocalesWithSymbols(),
       (locale) => initializeDateFormatting(locale, dataDirectory));
 
   test('Run all date formatting tests nested test', () {